I've got Dr. Brown's glass and I really like them, I've dropped them and let my 9 month old play with them and never had one break. They're very thick and sturdy, you'd really have to chuck it or change temps super rapidly to break them.

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Mercedes-, babywearing, breastfeeding, co-sleeping, happy mama just trying to do my best for my sweet little Jack (12/11) and #2 due 9/16